Redox Reactions And Electrochemistry Ques 6
Question: The equivalent weight of phosphoric acid $ (H_3PO_4) $ in the reaction $ NaOH+H_3PO_4\to NaH_2PO_4+H_2O $ is [AIIMS 1999]
Options:
A) 25
B) 49
C) 59
D) 98
Show Answer
Answer:
Correct Answer: D
Solution:
Molecular weight of $ H_3PO_4 $ is 98 and change in its valency = 1 equivalent wt. of $ H_3PO_4 $ $ =\frac{Molecular,weight}{Changeinvalency}=\frac{98}{1}=98 $ .
